28
Diagram
of
electrical
connections
is
presented in Drawing 31. The connection
wires should not have contact with surfaces
of room temperature exceeding the nominal
temperature of their operation.
Terminals number 1-15 are intended only for
connecting
devices
with
mains
supply
230V~.
Terminals 16-31 are intended for cooperation
with low voltage devices (below 12 V).
Connecting mains supply 230V~ to
terminals
16-31
and
to
transmission connectors RS485 will
damage the regulator and creates
risk of an electric shock.
Tips of the connected wires, especially power
leads, must be secured against splitting by
means of insulated clamp sleeves, in
accordance with the drawing below:
Drawing 30 Securing wire tips: a) right, b) wrong
The feeder cable should be connected to the
terminals marked with an arrow.
13.7
Protective connections
The protective conductor of the feeder cable
should be connected to a neutral strip
contacted with the metal casing of the
regulator. The fitting should be connected to
the regulator terminal marked with symbol
and with grounding terminals of the
devices connected to the regulator (Drawing
31).
Drawing 31 Diagram of electric connections with
external devices, where: T1
–
boiler temperature sensor
CT4, T2 fuel feeder temperature sensor CT4, T3
–
domestic hot water temperature sensor, T4
–
mixer 1
temperature sensor, CT4, T5
–
weather temperature
sensor type CT4-P, T6
–
temperature sensor for water
returning to the boiler (optional), U3
–
relay for
connecting reserve boiler or alarm, T
–
room
thermostat, P
–
boiler control panel, MX.01
–
extension
module (option, tow additional heating cycles), ! -
connect with two wires
–
do not connect with four wires.
230V~ - feeding cable, STB
–
safety temperature limiter
(disconnects feeder and airflow), W
–
fan, PO
–
fuel
feeder motor, PCO
–
central heating pump, PCW
–
domestic hot water pump, PM
–
mixer pump, SM
–
mixer servo, LZ
–
neutral strip, UZ
–
earthing of the
regulator metal casing.
The regulator must be equipped
with a set of pins, inserted in the
connectors
for
feeding
230V~
devices
Summary of Contents for ecoMAX 80 R1
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